ColorTrend HT User's Manual - Color …...for Color Measurement of Citrus Products User’s Manual...

ColorFlex EZ Citrus for Color Measurement of

Citrus Products User’s Manual

Hunter Associates Laboratory

11491 Sunset Hills Road, Reston, Virginia 20190 USA www.hunterlab.com

Firmware Version v1.00and Above Manual Version 1.0

A60-1014-591

October, 2013

CFEZ Citrus User’s Manual Version 1.0

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Copyrights and Trademarks This documentation contains proprietary information of Hunter Associates Laboratory, Inc. Its reproduction, in whole or in part, without the express written consent of Hunter Associates Laboratory, Inc. is prohibited.

EasyMatch is a registered trademark of Hunter Associates Laboratory, Inc.

ColorFlex EZ is a registered trademark of Hunter Associates Laboratory, Inc.

Windows is a registered trademark of Microsoft Corporation in the United States and other countries.


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Table of Contents INTRODUCTION TO THE COLORFLEX EZ SYSTEM ............. 1

Accessories .......................................................................................... 1

Options and Sample Devices .......................................................... 3

Spare OJ4 Standard ...................................................................... 3 Set of 6 OJ Standards ................................................................... 3 External Printer ............................................................................ 4 Keyboard ....................................................................................... 4 Bar Code Scanner ......................................................................... 5 EasyMatch QC Software ............................................................. 5

Installation .......................................................................................... 6

The Basics of ColorFlex EZ Operation .......................................... 7

The Button Pad and LCD Display ............................................. 8 Menus and Prompts..................................................................... 8

Terminology Used ............................................................................. 9

Product Standard ......................................................................... 9 Sample ........................................................................................... 9 Tolerances ..................................................................................... 9

MEASURING CITRUS ..................................................................... 11

Standardization ............................................................................... 11 Standardization Process ........................................................... 12

Product Setup ................................................................................... 14

Sample Preparation and Presentation ........................................ 15

Reading Individual Samples ........................................................ 16

Using a Hitch to the Citrus OJ4 Standards ................................. 19

Working with Saved Readings .................................................... 21


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Delete All Readings .............................................................. 21 Print All Readings ................................................................. 22 View Saved Readings ........................................................... 22 Filter By Setup ....................................................................... 23

Saving to Datalog............................................................................. 23

Setup Maintenance ......................................................................... 24

Reset All Setups ..................................................................... 24 Print All Setups ..................................................................... 24 Print One Setup ..................................................................... 25 Clone All Setups .................................................................... 25

GLOBAL OPTIONS & SETUPS ..................................................... 27

Language .......................................................................................... 28

Display Settings ........................................................................... 29

Setups Locked?................................................................................. 31

AutoSave ........................................................................................... 31

Standardization Interval ................................................................ 31

AutoSearch ................................................................................... 32

Date/Time ...................................................................................... 33

MAINTAINING & TESTING COLORFLEX EZ ......................... 35

Cleaning the ColorFlex EZ ............................................................. 35

Maintaining the Instrument Standards ....................................... 36

About Your Instrument .................................................................. 37

Replacing the Lamp ........................................................................ 37

Diagnostics ....................................................................................... 37

White Tile Repeatability ........................................................ 38 Green Tile Check .................................................................... 39 Signal Levels .......................................................................... 40 Self Test .................................................................................... 40


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SPECIFICATIONS ............................................................................. 43

Operating Conditions ..................................................................... 43

Physical Characteristics .................................................................. 44

Conditions of Illumination and Viewing ................................... 44

Instrument Performance ................................................................. 45

Regulatory Notice ............................................................................ 46

INSTRUMENT REPLACEMENT, REPAIR, PROBLEMS, AND QUESTIONS ....................................................................................... 47

Warranty ........................................................................................... 47

Shipping Claims .............................................................................. 48

Breakage or Damage .................................................................. 48 Shortage ....................................................................................... 49 Incorrect Shipment ..................................................................... 49

Returns/Repairs ............................................................................... 50

Packing and Shipping Instruments for Repair ...................... 51

When You Need Assistance ........................................................... 52


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Introduction 1

CHAPTER ONE

Introduction to The ColorFlex EZ System for the

Measurement of Citrus Products

The ColorFlex EZ Citrus Color Meter is a compact spectrocolorimeter used to measure the color of fresh and concentrated orange, grapefruit, and lemon juice. The instrument can provide measurements as colorimetric (such as XYZ or L, a, b) data, and can show citrus score values in agreement with the U.S. Department of Agriculture (USDA) D45 Citrus Meter.

This instrument has 45°/0° measurement geometry with a 25.4 (1.0 in) viewed area. It is intended to be used in the port-forward orientation mounted on the sample clamp/port-forward stand with a special tube holder used to properly position sample tubes.

Accessories

The following accessories are included with the ColorFlex EZ and can be found in the provided carrying case: • Calibration tiles - NIST-traceable Calibrated Instrument White

Tile and Black Glass used for instrument standardization. In addition, a Diagnostic GreenTile is used to verify long-term instrument performance. Certificate of traceability for the Calibrated Instrument White tile.

• Tile data sheet - provides NIST-traceable calibrated values for the standard Instrument White tile and values read-at-factory for the Diagnostic Green tile.


2 Introduction

• Plastic “OJ4” standard tube with USDA calibration - used for hitching the instrument to USDA’s standards. Your first two setups by default utilize this standard as a hitch standard.

• USB cable for connecting the ColorFlex EZ to a computer.

• Standard 31.8 mm (1.25 in) port insert - used for the Instrument White Tile check, the Green Tile check, and the measurement of flat, solid samples, if desired.

• Sample clamp/port-forward stand - used to hold the instrument in the port-forward orientation.

• Orange juice tube holder - used to hold sample tubes (not included) at the measurement port.

• Standards care card - gives instructions on how to clean the standards.

• Lens wipes. • Lens brush. • AC adapter 12 W/9V. • ColorFlex EZ User’s Guide.

• Utility program CD and Diagnostics diskette.

• EZMQC- EasyMatch Quality Control Software with CMR-2913 Option which provides Citrus Scores in EasyMatch QC software that can be used independently of the same Citrus Scores provided in CFEZ Citrus firmware.


Introduction 3

Options and Sample Devices Any or all of the following options and sample devices that apply to the measurement of citrus products may be included. HunterLab part numbers are included for your convenience in ordering.

• Spare OJ4 standard, uncalibrated (A11-1011-509), also available with USDA calibration for an additional fee,

• Set of 6 OJ standards [OJ1-OJ6], uncalibrated (A11-1011-510), also available with USDA calibration for additional fee,

• External USB printer (A13-1014-259)

• Keyboard (A13-1014-294)

• Bar Code Scanner (A13-1014-254)

• EasyMatch QC software with Citrus Option (EZMQC-Citrus/CFLX).

Spare OJ4 Standard This option provides a spare uncalibrated or USDA-calibrated plastic OJ4 standard for creating a new instrument hitch or checking the current instrument hitch.

Set of Six OJ Standards This option provides a set of six OJ standards (OJ1 through OJ6) purchased either uncalibrated or USDA-calibrated.


4 Introduction

External Printer (A13-1014-259) The external ribbon printer connects to the ColorFlex EZ’s USB port and prints measurement data or product setup parameters on request. A communications cable to connect the printer to the ColorFlex EZ is provided.

The printer is automatically detected by the ColorFlex EZ once connected.

Keyboard (A13-1014-294) The optional flexible keyboard connects to the ColorFlex EZ’s USB port to allow easy entry of any alphanumeric information (such as setup names) required.

The up, down, left, and right arrow keys on the keyboard correspond to the same buttons on the ColorFlex EZ button pad. The Enter key on the keyboard emulates the center (Go) button on the ColorFlex EZ’s button pad. Numbers and letters may be typed on the keyboard as usual.

The keyboard is automatically detected by the ColorFlex EZ once connected.


Introduction 5

Bar Code Scanner (A13-1014-254) The optional bar code scanner connects to the ColorFlex EZ’s USB port to allow scanning of a bar code for the ID tag of a reading after the reading is made.

The bar code reader is automatically detected by the ColorFlex EZ once connected.

EasyMatch QC Software with Citrus Option (EZMQC-CFLX) EasyMatch QC is a Windows-based computer program that performs numerical calculations on data measured by the ColorFlex EZ (including citrus scores), stores sample measurements, and provides graphical representations of data. Measurements may be made and stored in the ColorFlex EZ memory and then uploaded into the software, or the ColorFlex EZ may be directly controlled by the software. Instructions for EasyMatch QC are provided in its separate User’s Manual.


6 Introduction

Installation Before operating the ColorFlex EZ, the instrument needs to be connected to a power source. In addition, the instrument may also be connected to a computer or to an optional component, such as a printer. Instructions are provided below. 1. Unpack the cartons and remove wrappings and cable ties.

Inspect for damage and notify the carrier and HunterLab immediately if any is discovered. Save the packing materials in case it becomes necessary to return the instrument to the factory.

2. Set the instrument up on the sample clamp/port-forward stand, (attached to the instrument at the factory). To use the sample clamp, pull the spring-loaded clamp away from the sample port, insert the item to be measured (such as the black glass or white instrument standard), and gently release the clamp.

3. Remove the standard port insert from the sample port and replace it with the orange juice tube holder port plate. Orient the port plate so that the opening in the tube holder portion is facing upward. Insert the alignment pin on the tube holder into the small alignment hole at the top of the instrument port. When the pin is properly installed into the hole, the tube holder should be held firmly in the upright position at the instrument port and should not be allowed to rotate.

4. Plug the AC adapter into the jack on the left side back of the ColorFlex EZ.

5. Plug the female end of the power cord into the AC Adapter and the male end into a wall outlet.


Introduction 7

6. If the instrument is to be used connected to a computer, printer,

or other USB device, plug the small end of the USB cable into the USB port on the back of the ColorFlex EZ.

7. Plug the large flat end of the USB cable into the appropriate USB port on the computer or device. If connecting to a computer, Windows’ plug and play feature should automatically find and install the ColorFlex EZ as a device. Let it do so until the “Found new hardware” message disappears. Other devices, such as the printer, bar code reader, and keyboard, are automatically detected by the ColorFlex EZ.

8. Turn the ColorFlex EZ on by pressing the GO button on the button pad.

The Basics of ColorFlex EZ Operation Commands are given to the ColorFlex EZ using the five buttons on the button pad. Instructional prompts and measurements are displayed on the 320 x 240 pixel color liquid crystal display (LCD) screen. When an item is to be measured using the ColorFlex EZ, the area of interest is placed flush at the sample port with the side of the sample to be measured toward the instrument. The sample must completely cover the sample port. When the read command is given using the button pad, the xenon flash lamp illuminates the sample, and the light reflected back to the detector by the sample is evaluated. The calculated measurement is then shown on the LCD.


8 Introduction

The Button Pad and LCD Display The five buttons on the button pad can be loosely defined as the LEFT, RIGHT, UP, and DOWN buttons, with the “GO” (lightning bolt) button located to the right of the arrows. These buttons perform

slightly different functions based on the current operation. Consult the miniature map of the button pad shown at the bottom of the LCD display for the relevant definitions of the buttons at any particular time.

Across the top of each measurement screen are numbers indicating (left to right) the Datalog number for this reading if it was saved to the ColorFlex EZ’s memory, and the number of hours and minutes since the instrument was last standardized.

Menus and Prompts All ColorFlex EZ functions may be accessed through its MAIN MENU. The MAIN MENU commands lead to prompts based on the function requested.

Choose RETURN to go back to the last screen used before the instrument shut down.

When OFF is shown as an available button command on the main menu screen it can be used to immediately turn the instrument off.


Introduction 9

Terminology Used Throughout this user’s guide and within the ColorFlex EZ’s firmware, several terms will be used repeatedly. These terms are defined below.

Product Standard A product standard (or “standard”) is an object that represents the ideal target color for the product. This object is the one to which others will be compared and deemed acceptable or unacceptable. The product standard may either be a physical item that is measured using the ColorFlex EZ or a set of color values that are entered into the ColorFlex EZ’s memory.

Sample A sample is an object that will be measured with the ColorFlex EZ and compared to the product standard. The color of the sample is typically close to the color of the product standard.

Tolerances Tolerances are limits that indicate how different a sample can be from the product standard and still be acceptable. Positive and negative tolerances may be set for each color scale and index parameter chosen for display. Then, the ColorFlex EZ can show a PASS or FAIL indicator after a sample is read. Samples that differ from the standard by no more than the entered tolerance are said to PASS. Samples that exceed the tolerance for one or more parameter are said to FAIL.


10 Introduction


Measuring Citrus 11

CHAPTER TWO

Measuring Citrus This chapter describes the various steps for normal operation of the instrument, including:

1. Standardizing, 2. Selecting product setups, 3. Hitching to the OJ4 standard, 4. Reading, 5. Storing, and 6. Printing data.

Standardization During standardization, the bottom-of-scale (0% reflectance) is set first by measuring the Black Glass at the sample port. The top-of-scale is then set by measuring the Calibrated Instrument White tile. Messages on the LCD screen prompt the user through the standardization process as described below. The time elapsed (in minutes) since the last standardization is shown in the upper right corner of the screen.

It is recommended that the ColorFlex EZ be standardized every four to eight hours.

CFEZ Citrus Color User’s Manual Version 1.0

12 Measuring Citrus

Also standardize the ColorFlex EZ any time there is a significant change (greater than 5°F) in ambient temperature. For example, if the ColorFlex EZ is moved from air-conditioning to an outdoor site that is 90°F, the instrument should be standardized again outdoors after time has passed to allow for stabilization under the new temperature. Also, it is very important that the white tile and glass standards used in standardization be treated carefully. They must be kept clean and in good condition. The “Maintaining and Testing ColorFlex EZ” chapter describes how to clean them

Standardization Process Standardization of a ColorFlex EZ is performed as follows:

1. Remove the calibration tiles from the standards box.

Check that the tiles are clean and free of dust and scratches. If they are dirty (including marked with fingerprints), they should be cleaned before proceeding.

2. Citrus products are measured in a test tube. To standardize, the test tube holder is removed from the front of the instrument and replaced by the standard 31.8 mm (1.25 in) diameter open port


Measuring Citrus 13

3. Select STANDARDIZE from the ColorFlex EZ’s main menu by moving the cursor highlight to its position using the UP and DOWN arrow buttons and then pressing the (GO) button.

4. The Standardization screen appears, prompting placement of the shiny side of the Black Glass on the measuring port. Check that the sample port is flat against the Black Glass and that the white dot is facing forward towards the operator.

5. Press the button (GO). The ColorFlex EZ reads the glass and sets the instrument bottom-of-scale. When it is finished, the screen prompts the user to place the Instrument White tile at the port.

6. Replace the Black Glass with the Instrument White tile, which is contained in the standards box. Check that the tile is flat against the sample port and the white dot is facing forward towards the operator.


14 Measuring Citrus

7. Press the button (GO). The ColorFlex EZ reads the Instrument White tile and sets the top of scale. When it is finished, the screen indicates that the instrument has been successfully standardized.

8. Press MAIN MENU (right arrow) to return to the main menu.

9. Periodically, such as once per week, perform the White Tile Repeatability test and Green (Color) Tile check to ensure that the instrument is operating properly. The user should also read the calibrated OJ4 standard on a regular basis and confirm that the instrument hitch is still implemented correctly.

Product Setup A product setup is a set of operating parameters that define the operation of the system for a specific product.

The Citrus Scores are stored in the ColorFlex memory when the instrument is configured at the factory.

For other applications, the setups may be modified. Up to 250 product setups may be stored in the ColorFlex EZ memory. When “Reset Setups” is chosen from the ColorFlex EZ menu, these default setups will be restored.


Measuring Citrus 15

Table 1.

Citrus Scores Product Views

Views Std Ill/ Obs

Color Scale/Index

Citrus Hitch C/2° CR, CY, CN Other Juices Hitch TBD Selectable

Selecting, Preparing, and Presenting Samples

1. Choose orange juice samples that are representative and examine the sample to avoid biased results. If the sampling procedure is adequate, a different sample selected from the same batch should result in comparable measured values.

2. Prepare samples in exactly the same manner each time they are measured. Stir the juice so that it is homogeneous, but do not introduce additional air into the sample.


16 Measuring Citrus

3. Present the samples to the instrument in a standard, repeatable manner. Results obtained depend on the condition of the samples and their presentation. Establish a method so that the same procedure is used each time specific samples or types of samples are measured. In this way a valid basis for comparison of measured results will be obtained. This also ensures repeatability of results when measuring the same sample again. Make a check list so that operators may simply check each step. The check list will also help in the training of new operators.

4. Follow the prompts to read the samples. Any measurements made in this setup will be adjusted to match the reference instrument.

Reading Individual Samples Complete the following steps to take single readings of citrus products using the ColorFlex EZ:

1. From the Main Menu, press the DOWN arrow key until the product setup screen is reached. Press GO to select a setup.


Measuring Citrus 17

2. Press the UP or DOWN arrow to select the Citrus Score Setup. Press GO to continue.

3. Select READ from the ColorFlex EZ’s main menu. Move the cursor highlight to its position using the up and down arrow buttons and then press the (GO) button.

4. When beginning measurements of Citrus products, it is an optional but recommended protocol to read the hitched OJ4 standard as a PQ (Performance Qualification) check. If the instrument is still hitched correctly, it should read the assigned X,Y,Z C/2 values closely, If not, re-set the hitch to the OJ4 standard as described in the next chapter.

5. To measure a citrus sample, pour the sample into an empty tube until it is almost full.

Place the sample in the tube holder.

6. Measure the sample by pressing the GO key. The result is displayed.

7. To view the next Citrus score, press the UP Arrow.

8. Press DOWN arrow to both Save/Print reading to the ColorFlex EZ’s memory and print the reading (if a USB printer is connected.)


18 Measuring Citrus

9. The saved readings counter in the upper left corner of the screen will be incremented to reflect the newly saved reading.

10. Remove the sample cup from the sample port and place next sample at the port.

11. Press READ to take another reading in this product setup.

12. Press UP to move to the next data view for this product setup.

13. Press RIGHT ARROW to return to the main menu.

Note: If a bar code reader is installed, scan the bar code now, and the ID will appear beneath the color.


Measuring Citrus 19

Creating a Hitch to the OJ4 Standard The hitch standard is particularly important for the ColorFlex Citrus because the first setup (“Citrus Scores”) hitches the instrument to the assigned values of the OJ4 Standard. At the factory, the values for the OJ4 standard (C/2°) have been entered along with the product views. If it is necessary to re-set the hitch, here is the procedure. 1. From the MAIN MENU, choose

PRODUCT SETUP. 2. Select the Citrus Scores Setup by

highlighting the selection and pressing GO.

3. Make sure that the standard type is set to HITCH; the Average is set to OFF, then select the VIEWS.

4. For Citrus Scores, the VIEW is set to Absolute, the Illuminant/Observer to C/2°, and the scale to X,Y,Z,

5. Return to the Product Setup screen and select Standard Values. The Standard Values screen appears.


20 Measuring Citrus

6. READ the OJ4 Standard and the X,Y,Z values are displayed with the first digit highlighted.

7. Modify each digit of the X,Y,Z values until it matches those of the values with the OJ4 standard.

8. Press DONE to return to the Product Setup Screen.

9. As an option, you can enter Tolerances for product PASS/FAIL, select TOLERANCES from the Product Setup Screen. Enter the tolerance values for each parameter. If the tolerances are set to 0.00, no tolerance is set.

10. Press MAIN MENU to return to the MAIN MENU.

11. Choose READ and select the setup to use.

12. Select YES and select the Citrus Scores.

13. Follow the prompts to read the samples. Any measurements made in this setup will be adjusted to match the reference instrument.

14. Place the sample at the port in the sample cup. Press the GO button to read as before.


Measuring Citrus 21

Working with Saved Readings Readings stored in the ColorFlex EZ’s memory may be viewed, printed, and deleted..

To work with saved readings, select Saved Readings from the main menu by moving the cursor highlight to its position using the up and down arrow buttons and then pressing the (Go) button. The Saved Readings menu appears.

Choose the desired function by scrolling using the up and down arrow buttons until it is highlighted and then pressing the right arrow button. The various functions perform as described below.

Delete All Readings Delete All Saved Readings causes a confirmation message to be shown. When GO is pressed, all measurements stored in the ColorFlex EZ’s memory are erased. When complete, a confirmation message is shown. The Saved Readings menu will be displayed next.


22 Measuring Citrus

Print All Readings Print All Readings causes all the measurements stored in the ColorFlex EZ’s memory to be output to the device (such as a computer) or printer connected to the ColorFlex EZ’s USB port. When complete, the Saved Readings menu is displayed.

View Saved Readings View Saved Readings allows the user to view and scroll through the readings saved in the ColorFlex EZ’s memory. The first reading stored in memory (which was assigned an ID of 0001 by default) will be shown first.

Press Print (DOWN arrow) to output the saved reading currently shown to the device (such as a computer) or printer connected to the ColorFlex EZ’s USB port.

Press Next (RIGHT arrow) to move forward to the next saved reading or Prep (LEFT arrow) to move back to the previous saved reading.

Press Back (UP arrow) to return to the Saved Readings menu or Main Menu (GO) to return to the main menu.


Measuring Citrus 23

Filter By Setup Filter by Setup allows the user to view readings saved in the ColorFlex EZ’s memory by choosing the product setup used to measure the readings of interest. The Saved Readings screen is shown first.

Scroll through the setups using the UP and DOWN arrow buttons until the desired setup is highlighted, then press GO to select. Advanced scrolling may be done a page at a time using the Page (RIGHT arrow) button.

View, print, and move through the readings saved for this setup in the same way described above for “View Saved Readings.”

Saving to the Datalog The ColorFlex EZ has the ability to manually or automatically save measurements to the Datalog on a USB flash drive in CSV (.csv) or ASCII (.dtg) format. The precision is 3 decimal places for colorimetric data, 5 for chromaticity values and 4 for spectral data. Once saved to the USB, the file can then be read directly into Excel or EZMQC for custom reporting.


24 Measuring Citrus

Setup Maintenance Setup Maintenance is selected from the main menu by moving the cursor highlight to its position using the UP and DOWN buttons and then pressing the (GO button.

The Setup Maintenance menu appears.

Select the desired command from the menu by moving the cursor highlight to its position using the up and down arrow buttons and then pressing the right arrow button.

The available commands are described below.

Reset All Setups Reset All Setups first gives a confirmation message then, if GO is selected, returns all product setups to their default (factory) values.

Note: The user will not be able to restore the default setups if the setups are locked in Global Options.

Print All Setups This command outputs the product setup parameters to the USB port for all the product setups.


Measuring Citrus 25

If the USB cable is connected to a printer, the parameters will be printed. If the cable is connected to a computer or other device, it will be sent to the other location.

Note: The user will need to open a receiving device in order to output setup parameters to a computer.

Print One Setup Print One Setup provides a screen to select the product setup to print.

Select the desired setup from the list by moving the cursor highlight to its position using the up and down arrow buttons and then pressing the GO (Print) button. The product setup’s parameters are then output through the USB port. If the USB cable is connected to a printer, the parameters will be printed. If the cable is connected to a computer or other device, it will be sent there.

An example printout is shown.

Clone All Setups Clone All Setups appears in the Setup Maintenance menu only when two


26 Measuring Citrus

ColorFlex EZs are connected together via the standard ColorFlex EZ USB cable and a Standard-A to Mini-A adapter. When Clone All Setups is chosen on one of the ColorFlex EZs, the full set of 250 product setups are sent from the initiating instrument to the second connected instrument. This process takes several minutes.

Press Cancel to stop the setup cloning while it is in progress.


Global Options and Setups 27

CHAPTER 3

Global Options Global Options allow the user to select the Language for Display, the Display settings, AutoSearch function, Date and Time and more.

The instrument options (and product setups) are retained in the ColorFlex EZ’s memory even when the instrument is turned off.

This chapter describes how to configure and maintain the global instrument options.


28 Global Options and Setups

Global Options Global Options is selected from the main menu by moving the cursor highlight to the “Global Options” position using the up and down arrow buttons and then pressing the (Go) button.

The Global Options screen appears.

Configure each parameter by moving the cursor highlight to its position using the up and down arrow buttons. When the desired parameter is highlighted, press the left or right arrow button to scroll through the available choices for the parameter. When the appropriate choice is displayed, stop scrolling. More options may then be configured in the same manner.

When all options are as desired, press the lightning bolt (Main Menu) button to accept the settings and return to the main menu.

The global options that may be configured are as follows:

Language ColorFlex EZ can display screens and prompts in English, French, German, Italian, Spanish, and Simple Chinese.


Global Options & Setups 29

To scroll through the languages, highlight the LANGUAGE and select the RIGHT arrow to change.

Display Settings When Display Settings is highlighted and the right arrow button is pressed, a submenu appears. In this submenu, the user may set the following parameters:

• Screen angle: Rotate the text on the ColorFlex EZ screen so that it may be easily read from either side of the instrument. 0° keeps the text in its normal position and 180° flips the text upside down. Please note that the functions of the buttons also rotate when the screen text rotates (i.e., what was previously the up arrow will become the down arrow if the text is flipped upside down).

Each press of the right arrow button increases the displayed value 180°.

• Backlight: Press the right arrow button to increase the brightness of the LCD’s backlight or the left arrow button to decrease the brightness. Values between 0 and 100 may be selected in increments of 5.


30 Global Options & Setups

• Contrast: Press the RIGHT arrow button to increase the LCD’s contrast or the LEFT arrow button to decrease the contrast. Values between 0 and 100 may be selected in increments of 5.

• Display Dim: Press the RIGHT arrow button to increase the time that must elapse (in seconds) after the last button press before the LCD backlight automatically dims. Press the LEFT arrow button to decrease that time. Values between 10 and 50 seconds may be selected in increments of 10. When the backlight dims, the display may still be read, and the press of any button on the button pad causes the backlight to turn back on.

• Display Off: Press the RIGHT arrow button to increase the time that must elapse (in minutes) after the last button press before the ColorFlex EZ’s LCD automatically turns itself off. Press the LEFT arrow button to decrease that time. Values between 1 and 4 minutes may be selected in increments of 1. When the display turns off, it may no longer be read, but the press of any button on the button pad causes the display to turn back on.

Note: The ColorFlex EZ will turn off entirely once 5 minutes elapse since the last button press.



Press Back (GO) to return to the Global Options screen.

Setups Locked? Choose YES to lock the product setups so that changes cannot be made to them. Choose NO to allow changes to the product setups. Each press of the RIGHT arrow button toggles between YES and NO.

AutoSave Choose YES to automatically save each measurement to the instrument’s Datalog as it is made. Choose NO to save measurements on demand. Each press of the RIGHT arrow button toggles between YES and NO.

Stdz Interval Indicate the amount of time that must elapse (in hours) between standardizations. Press the RIGHT arrow button to increase the number of hours or the LEFT arrow button to decrease the number. Values between 1 and 16 may be selected in increments of 1. Selecting 4 is suggested. The choice of OFF is also available (disabling prompting for standardization), but its use is not recommended.



AutoSearch One of the features of the ColorFlex EZ is that it automatically finds the closest physical, numeric, or hitch standard stored in the instrument’s memory to a sample read. When AutoSearch is highlighted and the right arrow button is pressed, a submenu appears. From this submenu, the following parameters can be set:

• Color Diff: If the user does not wish to use the AutoSearch feature, set this parameter to (...). To use this feature, select the color difference index for sample/standard comparison. The choices are dE, dE*, and dEcmc. This index and the illuminant/observer set in each product setup searched will be used for the comparison. Each press of the RIGHT arrow button changes the color difference index to the next one available.

• Average: If the user does not wish to average measurements used in autosearching, set this parameter to OFF. To use this feature, select the number of readings to average. Press the RIGHT arrow button to increase the



number of readings or the LEFT arrow button to decrease the number. Values between 2 and 20 may be selected in increments of 1.Press Back (the GO button) to return to the Global Options screen.

Date/Time When Date/Time is highlighted and the right arrow button is pressed, a submenu appears. In this submenu, set the current date and time.

Refer to the button pad map at the bottom of the screen.

Press NEXT to move to another parameter to set. Year is set first, then month, then day, followed by the hour and minutes. (Seconds may not be set.)

Press UP arrow+ to increase the value of the current parameter or the DOWN arrow to decrease it.

Press SET to accept the entered date and time and leave the Date/Time screen.

Press BACK to discard the entered date and time and leave the Date/Time screen.


Maintaining and Testing 35

CHAPTER FOUR

Maintaining and Testing ColorFlex EZ

The ColorFlex EZ requires very little maintenance; keep the tiles and Black Glass clean, and take reasonable precautions to prevent entry of contaminants into the sample port.

This chapter describes the maintenance necessary to keep the instrument functioning properly and the tests that may be run to assess performance.

Cleaning the ColorFlex EZ Clean the outside surfaces of the ColorFlex EZ using a soft cloth. Do not spray liquids directly on the instrument.


36 Maintaining & Testing

Maintaining the Instrument Standards

Before standardizing the ColorFlex EZ each time, inspect the Instrument White tile and Black Glass (if included) for dust and fingerprints. Do the same for the Diagnostic Green Tile prior to running the Diagnostic Green Tile test. Keep the calibration tiles in the carrying case when not in use. If a tile is lost or damaged, contact HunterLab as described in “When You Need Assistance” concerning replacement.

Clean the tiles and Black Glass using a soft nylon bristle brush and a solution of warm water and a laboratory grade detergent such as SPARKLEEN. Rinse the tiles in a stream of warm tap water. Blot them dry using a clean, non-optically brightened, lint-free paper towel.

Note: SPARKLEEN is manufactured by Fisher Scientific Co., Pittsburgh, PA 15219 and may be ordered from them using catalog number 4-320-4. One tablespoon of SPARKLEEN should be added to every gallon of water.


Maintaining & Testing 37

About Your Instrument By selecting ABOUT from the MAIN MENU, the Model number, serial number, firmware version and lamp flash count are displayed.

Replacing the Lamp Lamp replacement requires a trained technician. Contact the HunterLab Field Service Department to arrange for lamp replacement. Please read “When You Need Assistance,” page 8-7, prior to contacting HunterLab.

Diagnostics

Diagnostics is selected from the main menu by moving the cursor highlight to its position using the up and down arrow buttons and then pressing the center (Go) button. The Diagnostics menu appears. Choose the desired function by scrolling using the up and down arrow buttons until it is highlighted and then pressing the right arrow button. The various functions perform as described below.



White Repeatability The purpose of the White Repeatability test is to verify short term repeatability performance of the instrument. The White Repeatability screens first prompt the user through a normal standardization for the instrument. When standardization is complete, the user is then prompted to leave the Instrument White Tile in position at the sample port and to press the GO button. Twenty readings of the Instrument White Tile are made automatically and the results of each reading shown concurrently. This test may be cancelled at any time by pressing the LEFT arrow to Cancel. When all readings are complete, the final result, as well as a PASS/FAIL status, is shown. The specification is that dE* must be less than or equal to 0.05 for the instrument to pass the test. Press PRINT to print the result (if a printer is connected to the instrument’s USB port). An example printout is shown.

Press DIAGS MENU to return to the Diagnostics menu.

Press Main Menu to exit Diagnostics.



Green Tile Check The first Green Tile Check allows the user to compare the values in the ColorFlex EZ’s memory to the values on the back of the Diagnostic Green tile. The purpose of this test is to verify long term repeatability of the instrument in measuring color. If the values match, press the GO button to continue. If the values in the instrument’s memory require revision, change the highlighted digit of the selected color scale value using the UP and DOWN arrow buttons. When the desired digit is shown, press NEXT to move to the next digit. When all digits are as desired, press GO to continue. Press BACK to cancel the test.

The user is then prompted through a normal standardization for the instrument. When standardization is complete, the user is then prompted to place the Diagnostic Green tile at the sample port and to press the GO button. One reading of the Diagnostic Green tile is made, and then the final result is shown with the PASS/FAIL evaluation. The specification is dX, dY, and dZ must all be less than or equal to 0.30 for the instrument to pass the test. Press PRINT to print the result (if a printer is connected to the instrument’s USB port). Press DIAGS MENU to return to the Diagnostics menu. Press MAIN MENU to exit Diagnostics.



Signal Levels The Signal Levels diagnostic first prompts the user to place a sample at the measurement port. Normally this will be the Instrument White Tile, but other instructions may be provided by HunterLab’s Technical Support staff. Place the sample and press GO. The sample and monitor channels are plotted on a graph for examination by HunterLab’s Technical Support staff. Press READ to read again. Press DIAGS MENU to return to the Diagnostics menu. Press MAIN MENU to exit Diagnostics.

Self Test The DIAGNOSTICS MENU contains a fourth function named SELF TEST. When this function is selected, communications tests between the ColorFlex EZ’s subsystems are run. If successful, the versions of the firmware present would be displayed. Also shown is the value of the checksum of the instrument’s calibration data as four hexadecimal digits.

The value of the checksum of the calibration data should remain constant unless the Instrument White tile’s assigned reflectance is updated or the instrument is serviced. A record of the



checksum’s values should be kept. If the value changes for unexplained reasons then the instrument may not function correctly.

Press DIAGS MENU to return to the Diagnostics menu.

Press Main Menu to exit Diagnostics.

CFEZ User’s Manual Version 1.1

Specifications 43

CHAPTER FIVE

Specifications The specifications and characteristics of the ColorFlex EZ instrument are given in this chapter.

For best performance, the instrument should be placed where there is ample work space with medium or subdued illumination and no drafts. The operating conditions (temperature and humidity ranges) are given in the Operating Conditions section below.

Operating Conditions Do not leave ColorFlex EZ in an area where temperature or humidity extremes are possible.

Storage Temperature (3weeks) -20°C to 60°C (-5°F to 140°F)

Operating Temperature 10°C to 40°C (50°F to 104°F)

Performance Temperature 21-28°C (70-82°F)

Noncondensing Humidity 10% to 90%

Power Input 100-240 VAC/0.4A,47-63 Hz


44 Specifications

Physical Characteristics Weight 3.6kg (8-lb)

Dimensions (height x width x length)

16.25cm x 13.2cm x 36.5cm 6.4-in x 5.2-in x 14.4-in

Communications Interface 1- USB OTG to computer 2- USB A to Keyboard, printer,

barcode scanner

RFI Compliance FCC Class A (Commercial), IEC, or equivalent

Safety Compliance UL, CSA, IEC, or equivalent

Standard Accessories Calibrated Instrument White Tile, Black Glass, Green Diagnostic Tile, Universal AC adaptor, computer interface cable, USB flash drive, User’s Manual, Certificate of Traceability

Conditions of Illumination and Viewing

Light Source Pulsed xenon

Lamp Life >1 million flashes

45°/0° Illumination Circumferential using a cylindrical mirror

Detection 2-channel polychromator with 256-element scanned array (half for sample channel, half for monitor)

Port/View Diameter/ 31.8 mm (1.25 in)/ 25.4 mm (1.0 in)


Specifications 45

Instrument Performance Citrus Scores

Spectral Data Range: 400-700 nm Reporting Interval (nm): 10 nm

Bandwidth at Half-height <10 nm

Wavelength Accuracy ≤0.75 nm

Photometric Range 0-150% reflectance

Photometric Resolution 0.01% reflectance

Measurement Speed (at 23°C) ≤1.0 seconds

Measurement Storage Capacity 2000 readings 250 product setups


46 Specifications

Regulatory Notice DECLARATION OF CONFORMITY

according to ISO/IEC Guide 22 and EN 45014

Manufacturer’s Name: Hunter Associates Laboratory, Inc.

Manufacturer’s Address: 11491 Sunset Hills Road Reston, Virginia U.S.A. 20190

Declares that the Product:

Product Name: ColorFlex EZ

Model: CLFX EZ 45/0 LAV.

Conforms to the following Standards:

IEC 61326-1:2005 (CISPR 11:2003:A1:2004, EN 61000-4-2:1995, and EN 61000-4-3:2006 + A1:2008)

EN 61010-1:2001

Supplementary Information:

This product herewith complies with the requirements of the EMC Directive 2004/108/EC and Council Directive 98/34/EEC, and carries the CE mark accordingly. (1) This product was tested using an IBM-compatible computer. European Contact: Christian Jansen

Griesbraeustrasse 11 82418 Murnau Germany Telephone: +49 (0) 8841 9464 Fax: +49 (0) 8841 99472


Instrument Replacement & Repair 47

CHAPTER SIX

Instrument Replacement, Repair, Problems, and

Questions The following HunterLab policies are described in this chapter:

• Warranty

• Shipping claims

• Returns/service

• Technical assistance.

Warranty HunterLab warrants that all instruments it manufactures will be free from defects in material and workmanship under normal use and service. Our obligation under this warranty is limited to repairing or replacing any parts which our examination disclose to have been factory defective when returned to us by prepaid transportation. The time limit on this warranty is one year from date of shipment of new instruments and two months from the date of shipment of repaired instruments.

HunterLab warranty does not cover expendable items such as lamps, fuses, batteries, and diskettes. The warranty is void if the user has made unauthorized repairs, performed improper installation, or has incorrectly used the instrument.


48 Instrument Replacement & Repair

Shipping Claims All materials are sold F.O.B. from Reston, Virginia (unless otherwise specified) and HunterLab responsibility ends upon delivery to the first carrier. All claims for loss or damage must be rendered by the consignee against the carrier within fifteen days of receipt of goods. A copy of this notice must also be forwarded to HunterLab within five days of its receipt.

Breakage or Damage According to the contract terms and conditions of the carrier, the responsibility of the shipper ends at the time and place of shipment. The carrier then assumes full responsibility. Perform the following procedures in the case that the ColorFlex EZ arrives broken or damaged.

Freight or Express 1. Notify the local shipping carrier.

2. Hold the damaged goods with their container and packaging for inspection by the examining agent. Do not return any goods to HunterLab prior to inspection by and authorization of the carrier.

3. File a claim against the carrier. Substantiate this claim with the examining agent’s report. A certified copy of our invoice is available upon request. The original B/L is attached to our original invoice. If the shipment is prepaid, write for a receipted transportation bill.

4. Advise HunterLab regarding replacement.

Parcel Post Shipment 1. Notify HunterLab at once in writing, giving details of the loss

or damage. This information is required for filing a claim.



2. Hold the damaged goods with their container and packaging for possible inspection by postal authorities.

3. Advise HunterLab regarding replacement.

United Parcel Service 1. Contact the local UPS office regarding damage and insurance

claims. Each UPS office has a different procedure for handling claims.

2. Retain the container and packaging.

3. Notify HunterLab at once for replacement.

Shortage Perform the following procedure if the order appears incomplete:

1. Check the packing list notations. The apparent shortage may be a backordered item and may be marked as an intentional short-ship.

2. Re-inspect the container and packing material, particularly to locate smaller items.

3. Ascertain that the item was not removed by unauthorized personnel prior to complete unpacking and checking.

4. Notify HunterLab immediately of the shortage in writing.

Incorrect Shipment Perform the following procedure if material received does not correspond with the order.



1. Notify HunterLab immediately, referencing the order number and item.

2. Hold incorrect items until return shipping instructions are received.

Note: Unless the procedures described in this section are followed and HunterLab is notified within fifteen days, we cannot accept responsibility for damaged or incorrect items.

Returns / Repairs A service request order (SRO) number is required before any items can be returned to HunterLab. Contact HunterLab’s Order Processing Department to obtain an SRO for damaged or incorrect parts, or Technical Support to obtain an SRO to return their instrument for service.

Do not return any damaged or incorrect items until all shipping instructions are received.

HunterLab offers complete repair services for all instruments it manufactures. Call HunterLab for the service facility nearest to your location. If the equipment is not functioning properly, contact HunterLab Technical Support for maintenance or repair instructions. Many times, this on-the-spot diagnosis is all that is required.

If repair is required, the instrument may be returned to a HunterLab service facility. For schedule and terms for repairs, call HunterLab Technical Support. Please read the next section, “When You Need Assistance,” prior to contacting HunterLab.



Customers are responsible for incoming and outgoing freight charges for instrument returned to HunterLab for all repairs, including warranty repairs.

Packing and Shipping Instruments for Repair Please regard the following instructions when packing the instrument to return it to HunterLab for repair. Proper packing is crucial. Ideally we recommend using the original shipping box. If the original packaging box is not available, then HunterLab sells replacement shipping boxes for a nominal fee.

Please also note that purchasing freight insurance does not guarantee a successful damaged shipment claim if the carrier determines the instrument was not packaged properly.

• All instrument tiles, Black Glass, power supply, power cords, and cables for the instrument should be included in the return shipment. The repair estimate will be delayed if the instrument tiles are shipped separately later.

• Cover the measurement port. Do not use duct tape. “Painter’s tape” is preferred, as it will not leave residue on the instrument.

• ColorFlex EZ carrying cases are not intended as shipping containers. Place the instrument inside the carrying case and then place the carrying case into the original packing container. Surround the instrument with a minimum of 6 inches of packing material (preferably foam) around the instrument. Styrofoam peanuts should not be used as packing material for instruments, as they can suspend items weighing only up to 5 pounds. Insure the shipment.

• Provide an itemized packing list of all contents of the shipment.

• Contact the HunterLab Service Department for a Service Request Order (SRO) number.



• Label the carton(s) as follows:

HunterLab Attn: SRO #____________ 11491 Sunset Hills Road Reston, VA 20190 U.S.A.

When You Need Assistance When there is a problem with an instrument or software, or technical advice concerning a specific application is needed, please contact HunterLab for assistance. In order to help us help you, please have the following information available prior to contacting HunterLab:

1. The type of sensor for which assistance is needed (i.e. ColorFlex EZ).

2. The serial number of the instrument (found on the bottom of the unit).

3. The type of processor or software in use to access the sensor output (such as EasyMatch QC), the version of the software, the operating system, and the brand and type of computer, if applicable.

4. The specific nature of the problem, including the exact error message received or the number of units the sensor reads “off” from the standard tiles.

5. The steps performed prior to the start of the problem.

6. Steps already performed to reconcile the problem and/or results of any diagnostic tests.

7. The type of product being measured.



8. Environmental conditions under which the instrument is normally used (temperature, humidity, dust, fumes, etc.)

9. Whether the instrument has recently been moved or the computer reconfigured.

10. The name(s) of any HunterLab personnel with whom the problem has been discussed.

The general number for HunterLab is (703) 471-6870. For prices on instruments, software, and replacement parts, or to place an order, ask for the ORDER PROCESSING DEPARTMENT. For measurement advice, for help in correcting instrument or software problems, to return instruments to HunterLab for service, or to ask questions about the servicing or recalibration of instruments, ask for TECHNICAL SUPPORT.

HunterLab may also be contacted through its web site, www.hunterlab.com.

The mailing address for HunterLab headquarters is given below. Customers outside the United States should contact their HunterLab distributor for initial assistance.

Hunter Associates Laboratory, Inc. 11491 Sunset Hills Road Reston, Virginia 20190 U.S.A.


Index I-1

Index About, 39 AC adapter, 2 Accessories, 1 AutoSave, 33 Autosearch, 34 Average, 34 Backlight, 31 bar code reader, 20 Bar Code Scanner, 6 Basics of ColorFlex EZ Operation, 8 black glass, 1 Broken instruments, 50 button pad, 8 Button Pad, 9 calibrated tile, 1 Certificate of traceability, 1 Cleaning the ColorFlex EZ, 37 Clone All Setups, 27 Color Diff:, 34 Contrast, 32 Damaged instruments, 50 Datalog, 25 Date/time, 35 Delete All Readings, 23 Diagnostics, 39 Diagnostics diskette, 2 Display Dim, 32 Display Off, 32 Display settings, 31, 40 EasyMatch QC Software, 6 External Printer, 5


I-2 Index

Filter By Setup, 25 Global Options, 30 Green Tile Check, 41 Hitch Standard, 21 Illumination, 46 Incorrect Shipment, 52 Installation, 7 Instrument Performance, 47 Instrument Repair, 49 Instrument Replacement, 49 Keyboard, 5 Lamp, 39 Language, 30 LCD Display, 9 Lens brush, 2 Lens wipes, 2 main menu, 9 Maintaining ColorFlex EZ, 37 Maintaining the Instrument Standards, 38 Menus, 9 NIST traceable, 1 OJ4 standard, 4 OJ4 standard tube, 2 Operating Conditions, 45 Operation, 8 Options, 4 Orange juice tube holder, 2 Packing instrument, 53 Performance, 47 Physical Characteristics, 46 Preparing samples, 17 Presenting samples, 17 Print All Readings, 24 Print All Setups, 26 Print One Setup, 27 Printer, 5 Problems, 49 Product Setup, 16


Index I-3

Product Standard, 10 Prompts, 9 Questions, 49 Reading, 18 Repairs, 52 Replacing the Lamp, 39 Reset All Setups, 26 Returns, 52 Sample, 10 Sample clamp/port-forward stand, 2 Sample devices, 4 Samples

Preparing, 17 Presenting, 17 Selecting, 17

Saved Readings, 23 Screen angle:, 31 Selecting samples, 17 Set of six OJ standards, 4 Set of standards, 4 Setup Maintenance, 26 Setups Locked?, 33 Shipment Shortage, 51 Shipping Claims, 50 Shipping instrument, 53 Signal Levels, 42 Spare OJ4 standard, 4 Specifications, 45 Standard, 10 Standard port insert, 2 Standards, 38 Standards care card, 2 Stdz Interval, 33 Terminology, 10 Testing ColorFlex EZ, 37 Tile data sheet, 2 Tolerances, 10 USB cable, 2


I-4 Index

Utility program diskettes, 2 View Saved Readings, 24 Viewing, 46 Warranty, 49 When You Need Assistance, 54 White calibrated tile, 1

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